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1. 发明申请

WO2011063873A1 DRIVING METHOD FOR OBTAINING A GAIN LINEAR VARIATION OF A TRANSCONDUCTANCE AMPLIFIER AND CORRESPONDING DRIVING CIRCUIT 审中-公开
标题翻译：用于获得交叉放大器和相应驱动电路的增益线性变化的驱动方法
公开(公告)号：WO2011063873A1
公开(公告)日：2011-06-03
申请号：PCT/EP2010/005928
申请日：2010-09-29
申请人： STMICROELECTRONICS S.R.L. , ALBERTINI, Matteo , RONCHI, Daniele , ROSSI, Sandro , RICOTTI, Giulio
发明人： ALBERTINI, Matteo , RONCHI, Daniele , ROSSI, Sandro , RICOTTI, Giulio
IPC分类号： H03F3/45 , H03G1/00
CPC分类号： H03F3/45183 , H03F3/45098 , H03F2200/294 , H03F2200/453 , H03F2203/45492 , H03F2203/45674
摘要： The invention relates to a driving method for obtaining a linear gain variation of a transconductance amplifier, of the type comprising at least one differential transistor cell, with adjustment of a driving voltage value (Vtgc1) of a degenerative driving transistor (MD1) of said transconductance amplifier, comprising the steps of : generating an output current signal of a differential cell (11) being a copy of said differential transistor cell of said transconductance amplifier, said output current signal having a linear relationship with a transconductance value of said copy differential cell (11) as said driving voltage (Vtgc1) varies; generating a reference current signal having a linear relationship with a differential input voltage; comparing said output current signal and said reference current signal for adjusting said driving voltage value (Vtgc1) and modifying said transconductance value of said copy differential cell (11) up to a balance of said current signals.
摘要翻译：本发明涉及一种用于获得包括至少一个差分晶体管单元的类型的跨导放大器的线性增益变化的驱动方法，其中调节所述跨导的退化驱动晶体管（MD1）的驱动电压值（Vtgc1）放大器，包括以下步骤：产生作为所述跨导放大器的所述差分晶体管单元的副本的差分单元（11）的输出电流信号，所述输出电流信号与所述复制差分单元的跨导值具有线性关系（ 11），因为所述驱动电压（Vtgc1）变化; 产生与差分输入电压具有线性关系的参考电流信号; 比较所述输出电流信号和所述参考电流信号，用于调节所述驱动电压值（Vtgc1），并修改所述复制差分单元（11）的所述跨导值直到所述电流信号的平衡。

2. 发明申请

WO2012089335A1 4D DATA ULTRASOUND IMAGING SYSTEM AND CORRESPONDING CONTROL PROCESS 审中-公开
标题翻译： 4D数据超声成像系统和相应的控制过程
公开(公告)号：WO2012089335A1
公开(公告)日：2012-07-05
申请号：PCT/EP2011/006556
申请日：2011-12-23
申请人： STMICROELECTRONICS S.R.L. , RONCHI, Daniele , TERENZI, MARCO
发明人： RONCHI, Daniele , TERENZI, MARCO
IPC分类号： G01S15/89
CPC分类号： G01S15/8925 , G01S7/52023 , G01S15/8918 , G01S15/8927 , G01S15/8993
摘要： 4D data ultrasound imaging system (100) comprising a matrix (10) of transducer elements (3) suitable for transmitting and for receiving ultrasound signals, said transducer elements (3) being divided into sub-matrixes (21) suitable for receiving in a delayed way a same acoustic signal, a plurality of reception channels (22) with one of said reception channels (22) being associated with one of said transducer elements (3), a beamformer device (109) comprising a plurality of storage cells (111) arranged in re-phasing matrixes (112), each re-phasing matrix (1 12) being associated with a corresponding sub-matrix (21) with each row (Ri) associated with one of said transducer elements (3), said storage cells (111) comprising an input storage stage (In) that is selectively associated with a row (Ri) and a reading output stage (Out) that is selectively associated with a buffer (16); each storage cell (111) that belongs to a same column (Coi) has the input stage (In) that is dynamically activated in sequential times with respect to another storage cell (11 1) of the same column (Coi) for storing the same delayed acoustic signal, said storage cells (1 11) that belong to the same column (Coi) have the output stage (Out) that is simultaneously activated.
摘要翻译： 4D数据超声成像系统（100）包括适于发送和接收超声信号的换能器元件（3）的矩阵（10），所述换能器元件（3）被分成适合于以延迟的方式接收的子矩阵（21）一种相同的声信号，具有一个所述接收信道（22）的多个接收信道（22）与所述换能器元件（3）中的一个相关联，包括多个存储单元（111）的波束形成装置（109）每个重定相矩阵（112）与相应的子矩阵（21）相关联，每个行（Ri）与所述换能器元件（3）中的一个相关联，所述存储单元（111）包括选择性地与与缓冲器（16）相关联的行（Ri）和读取输出级（Out）相关联的输入存储级（In）; 属于相同列（Coi）的每个存储单元（111）具有相对于用于存储相同列（Coi）的另一存储单元（111）的连续时间动态地激活的输入级（In）延迟声信号，属于同一列（Coi）的所述存储单元（11）具有同时被激活的输出级（Out）。

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